Today was my 1st UD, I could only manage 1590 calories out 2190...Im stuffed....at 6pm I was done!

Better eating on Thursday

Hopefully you can eat more tonight. Your DD tomorrow may be really challenging and if you don't eat you UD calories you aren't doing JUDDD. Just a low calorie/ daily restriction plan. You will not get the wonderful benefits that come with JUDDD if your calories are much to low.